CVE-2026-56367: imagemagick Out-of-bounds Read
CVSS: 6.3v4.0MediumPublished
AliasesUBUNTU-CVE-2026-56367DEBIAN-CVE-2026-56367
Published 21-06-2026Last modified 22-06-2026
Vulnerability summary
CVE-2026-56367 is a medium (CVSS 6.3) Out-of-bounds Read vulnerability in imagemagick. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 13.6% of scored vulnerabilities.
CVSS score
6.3/10
010
Medium · v4.0 (CVE.org)EPSS score
0.24%
0%100%
Low · -0.18 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 8 · Related 8Timeline
- 21-06-2026PublishedVulnerability first disclosed.
- 22-06-2026Last modifiedVulnerability information updated.
Description
ImageMagick before 7.1.2-15 and 6.9.x before 6.9.13-40 contains an integer overflow in the PSB (PSD v2) RLE decoding path (ReadPSDChannelRLE in coders/psd.c) that causes a heap out-of-bounds read on 32-bit builds. Processing a crafted PSB file can lead to information disclosure or a crash.
CVSS metrics
5 scores · 3 sources · 2 versionsMedium 6.3Preferred score · CVE.org (CNA)
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:NSourcesAll 2 agree
- OSV · UbuntuEcosystem advisory · calculated6.3MediumCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Low 3.7Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:NSources3 sources · 3.7–9.1
- OSV · UbuntuEcosystem advisory · calculated9.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:HDiffers
- OSV · DebianEcosystem advisory · calculated9.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:HDiffers
EPSS trend
Probability
0.24%
Chance of exploitation in the next 30 days
Percentile
14%
Versus all other CVEs
30-day change
-0.18 pp
From 0.42% on 21-09-2026
21-09-202621-10-2026
EPSS score0.24%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian1 product
- imagemagick< 8:6.9.11.60+dfsg-1.6+deb12u12 | < 8:7.1.1.43+dfsg1-1+deb13u11 | < 8:7.1.2.15+dfsg1-1
Imagemagick1 product
- imagemagick≥ 7.0.0, < 7.1.2-15 | ≥ 6.9.0, < 6.9.13-40
Ubuntu1 product
- imagemagick< 8:6.8.9.9-7ubuntu5.16+esm26 | < 8:6.9.7.4+dfsg-16ubuntu6.15+esm18 | < 8:6.9.10.23+dfsg-2.1ubuntu11.11+esm16 | < 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm16 | < 8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm15 | All versions (No fix recorded)
3 vendors · 3 products
